I have a lot of experience with seekingarrangment. Here are the bad signs:
Do NOT proceed if she:
Asked for the money upfront before intimacy - she would be a scammer
Talked you about her bills right off the bat
Talked to you about her electricity or phone getting cut off
Asked for money to simply meet and greet
If you avoid those, there are a lot of pretty and willing girls there; but you have to look carefully. I have been with quite a few; so ask if you need help